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ECOL.DAT
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ecology study of relationships between living things & their environment
abiotic factors nonliving things that affect life - temp; water; light; minerals
bioitc factors living things that affect others - plants; fungi; animals ...
biosphere the limited region on earth; oceans; air - where life occurs
ecosystem any area where living things interact with one another
habitat the place in an ecosystem where a living thing lives
population a group of organisms of the same species
community all the populations in a given area
niche the specific biological role of a living thing in a community
water cycle movement of water from air to earth and back again
carbon cycle movement of carbon through the ecosystems
nitrogen cycle movement of nitrogen through the ecosystems
N fixation the conversion of N gas into organic form - legumes; bacteria
ammonification conversion of amino acids to ammonia
nitrification conversion of ammonia by bacteria into nitrates
denitrification conversion of nitrates into nitrogen gas
producer living things that make their own food by photosynthesis
consumer organisms that must eat other organims for food
herbivores consumers that eat plants only
carnivores consumers that eat other animals only
omniovores consumers that eat both animals and plants
decomposers organisms that break down dead organic material into inorganic
food chain steps through which energy from sun is transferred through ecosystem
food web interrelated food chains in an ecosystem
symbiosis long term interaction involving two organisms
mutualism symbiotic relationship in which both organisms benefit
commensalism symbiotic relationship: one benefits and other gets no harm/no benefit
parasitism symbiotic relationship: one beneftis and other organism harmed
carrying cap'ctythe maximum population size a particular environment can support
succession gradual change in a community
climax communitystable community no longer changing via succession